Development of a MASH TL-3 median barrier gate.

Details

• Alternative Title:
  Project title: Roadside safety device crash testing program
• Creators:
  Bligh, Roger P. ; Arrington, Dusty R. ; Sheikh, Nauman M. ; Silvestri, Chiara ; Ivev, Don L.
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  Median Barriers Medians Median Strips--Design And Construction
• Publication/ Report Number:
  FHWA/TX-11/9-1002-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical/test report; Sept. 2008-Aug. 2010.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  Median barriers are commonly used to separate opposing lanes of traffic on divided highways and to
  
  separate managed lanes from general purpose lanes. Concrete median barriers (CMBs) are often preferred
  
  on urban freeways with narrow medians due to their minimal deflection and low maintenance. However,
  
  long, continuous runs of CMBs limit access of emergency and maintenance vehicles to the other side of a
  
  roadway or a managed lane. Implementation of crashworthy median barrier gates at these locations can
  
  maintain the desired level of median protection for motorists while offering improved cross-median access
  
  for emergency and/or maintenance vehicles.
  
  A new median barrier gate was developed and crash tested under this project. The gate spans a 30-ft
  
  opening in a concrete median barrier and consists of two vertically stacked 12-inch × 12-inch × ¼-inch steel
  
  tubes connected to steel end brackets with 2¼-inch diameter steel pins.
  
  The gate is economical to fabricate and install. It can be manually operated by a single person and is
  
  designed to accommodate reversible traffic flow on both sides of the median and be operable in both
  
  directions on each end. The median barrier gate satisfies MASH Test Level 3 (TL-3) impact performance
  
  criteria and is considered suitable for implementation on Texas highways where cross-median access is
  
  desired.
  
  
• Format:
  PDF
• Funding:
  Project 9-1002
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:55990c78c4793637e85f5f3a11827b8ceecc7aacef67c4161559c424b42a49c4763a740853f514394bbee2bf1fb59b2bec0c694ae30e0096b44a8feb9345e901
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20702/dot_20702_DS1.pdf
• File Type:
  [PDF - 24.09 MB ]